package cn.csq.observer;

/**
 * @author chengshanqing
 * @date Created in 2022/03/16 09:37
 */
public class ConcreteSubject extends Subject {

    @Override
    void addObserver(Observer observer) {
        super.addObserver(observer);
    }

    @Override
    void deleteObserver(Observer observer) {
        super.deleteObserver(observer);
    }
}
